Porcelain-tube-heading machine



T. W. BEATTY.

PORCELAIN TUBE HEADING- MACHlNE.

APPLICATION FILED DEC- 20, I920.

Patented June 14, 1921.

2 SHEETSSHEET l.

T. w. BEATTY. PORCELAIN TUBE HEADING- MACHINE- APPLICATION FILED DEC-20, I920.

Patented June 14, 1921. 2 SHEETS-SHEET 2.

" INVEN'I'UR.

fly flow UNITED STATES PATENT OFFICE. V

THOMAS W. BEA'ITY,'OF CAREY, OHIO.

PORCELAIN-TUBE-HEADING MACHINE.

Specification of Letters Patent.

7 Application filed. December 20, 1920. Serial No. 432,060.

T 0 all ham it may concern:

Be it known that I, Tnoims W. BEATTY, acitizen of the United States, anda resident of Carey, in the county of Wyandot and State of Ohio, havemade an Invention Appertaining to Porcelain-Tube l-leading Machines; andI do hereby declare the following to be a full, clear, and exactdescription of the .inventiom'such as will enable others.

sion of a machine of the characterdescribed which issimple ande'lticient 1n its construe tion and is operable to {rapidly andsuccessively feed tubes from a magazine or source ofsupply to a headingpoint, form heads thereon and then discharge the tubes preparatory tothe next heading operation.

Further objectsancl advantages of the invention willbeapparent from thefollowing detailed description;

While the invention in its broader aspect is capableof embodimentini'iumerous forms,

a. preferred embodiment therepf is ill ustratedin the accompanyingdrawings, in which,-

Figure 1 isa top plan view of a machine embodying the invention, withthe tube heading parts in heading position. Fig. 2 is a sideelevation'tliereof. Fig. 3 is an enlarged longitudinal section of theleft hand portion of the machine'and Fig. i is an enlarged longitudinalsection of the right hand portion ofthe machine, both taken througlijtle longitudinalrenter of one of the heading units. Fig. 5 is across-section on the line 5-5 in Fig.4, and Fig.6is a centrallongitudinal section of the outer end portion of one of the crank drivenconnecting rods;

Referring to the drawings, 1 designates a machine frame having thelongitudinally extending transversely spaced beams 2. 2

' connected together at their ends by cross pieces 3 and supportedby-legs or standards 4. The machine illustrated is provided with twoheading units arranged sine by side lengthwise of the frame and being ofduplicate construction so'that a description of.

one will serve as a descriptionof the other,

or for any number of units which it may be desired to employ. e

'l'he heading unit comprises a longitudinally movable placing plungero.located at one end of the. machine for reciprocatory.

movements longitudinally thereof in suitable bearings 6. The forward orinner end of this plunger is provided at its under side with a springfinger 7 which extends longitudinally of the plunger and is lined atits.

rear end thereto, as shown in Fig. This finger projects at its forwardend beyond the forward end of the plunger and is transversely broadenedand curved in advance of the plunger end to provide a seat 7? for aporcelain when being advanced from sup}. ply position to upsettingposition. The nose of the finger. 7 is inclined or'tapered onf its outerend edge for the purposehereinafter described. The plunger has itsforward end providedwith a porcelainhead receiving or upsetting recess8. .Therecess 8 .has aren'- tral opening 9 extending therefrom into theplunger lengthwise thereof. 7 A work holding magazine 10 is carried bythe frame 1 adjacent to theforward end of the plunger 5 when at thelimit of its fore; ward movement, and has an opening'longitudinallytherethrough, through which the plunger operates. hen the plunger is atthe limit of its forwardniovement'its for-- ward end projects a shortdistance beyond the forward end of the magazine and when at the limit ofits rearward inovementthe' forward end of the plunger is retracted asui'iicientdistance in the magazine 10 to per? mit a tube a therein todrop down inadvance of the plunger onto the seat 7 of the PatentedJune14, 1921.

finger 7 tobe carriedfori'vard withithe finger ceiving andupsetting endportion 1 1', which has its llltGIlOI' longitudinal opening or a tube ato be operated size to freely receive 3 I on and has its forward endadapted to abut against the forward end of the-plunger 5 and cooperatewith the recess 8 thereof in upsetting the end of a tube and forming ahead thereon as shown in Fig. 4.

A tubular stop member 15 is mounted within the plunger 11 and projectsforward therefrom into the head 13 a desired distance to coact with andact as a stop for the adjacent end of the tubea being acted on. The stoptube 15 is adjustably carried at its rear end portlon by a pairofopposed clamps 16, 16 which extend crosswise ofthe frame top 3 throughslots 17 in the opposite sides of the plunger barrelll'and is secured tothe frame top by screws 18. It is evident that upon a loosening of thescrews 18 the stop tube 15 may be lengthwise adjusted relative to theclamping plates and then secured in adjusted position by a tightening ofthe screws. j

A core rod 19 is disposed within the rear end portion of the plungerbarrel 11, being carried for movements therewith, and'projects therefromthrough the stop tube 15 and when in forward position, projects adistance in advance-ofthe tube end substantially equal to the length ofa tube a to be operated on. The rear end of the rod 19 projects throughthe rear end of the barrel 11, being provided with a head 20, whichworks in a socket 21 in the barrel end. A coiled expansion spring 22encircles the rod 19 within the base portion of the socket and the head20 of the rod to normally retain the latter retracted a predetermineddistance with respect to the barrel 11 for the poses hereinafterdescribed; I

The plungers 5 and 11 have opposed inward and outward movements impartedin unison thereto from a rotation of a crank shaft 23 having doublecranks thereon, one for each plunger,and being driven from a shaft 24through a worm and worm-wheel connection 25. Thecranks are offsetaxially of the shaft s em a rod attached to each may make a completerevolution without interfering with the other. The shaft 24 may beconnected to a drive motor 26 or driven in any other suitable manner.

The crank 27 of the crank shaft is connected by a connecting rod 28 toan upright rocker member 29 that is pivoted at its bottom at 30 forrocking movementslongitudh nally of the frame and has its upper endconnected by a link 31 to the plunger 5 of the different units by aclamp 32. The throw of the member 29 is adjusted by changing thepoint ofconnection of the rod 28 with the member. A connecting rod 33 connectsthe crank 34 of the crank shaft with an upright rocker member 35,whichis pivoted at 36 to the base of the frame for is connected by alink 37 to the several plunger barrels 11 of the machine through aclamping. means 38. The wrist pin 39,

which pivotally connects the rod 33 and member 35, is .journaled in abearing block 40,which is mounted in a longitudinal guide .41 inrtheouter end of the rod 33 for renear, but has not as yet reached the limitof its inward stroke, the inward movement of the plunger 11 is stoppedby the coaction of the clamping means'38 with a stop 48 (Fig. 4) fixedto the frame-1, the remainder of the inward stroke of the connecting rod33 then being permitted by the yielding action of the spring 42. It isthus evident that the plunger 11 and its forming head 14 have come to astopduring an inward movement thereof before the plunger 5" has reachedthe limit of its inward movement, so that said latter plunger thenadvances alone to the point of coaction with the plunger head 14. Theprimary purpose of this is to cause the plunger 5 to first retract fromthe formed head of a tube a before the plunger 11 begins its rearward orre tracting movement.

' The plunger 11 at the rear end thereof,- carries avertically disposedlever 45 the core rod 19 normally is retracted so that its forward enddoes not project beyond the end of the plunger head 14, therebypreventing the end of the rod from injuring or marring the soft materialforming the tube a as the tube drops down from the plunger head 14 upona retraction of the latter.

The operation'of themachine is as fol lows i VVhen the plungers 5 and 11are at the limit of their outward or rearward movements a tube or workpiece a in the magazine 10 drops down onto the subjacent finger seat 7in advance of the plunger 5. On

the inward strokes of the plungers the work carryingfinger 7 advancesthe workpiece toward the advancing open end of the plunger head 14 inposition for the work piece to enter said head, the forward end of thefinger 7 being caused to swing down and passunder the head '1tby thecoacti'on of thetapered end thereof-with the head. The head 14: reachesits limit of forward movement in advance of the plunger 5 and thenstands at rest by reason of the coactionof the clamp 38 with the stop 48until the in advance of the head 14.- and into the opening 9 of theplunger 5 by reason of the advancing of the core-rod from its normalretracted position during the last portion of the advancing movement ofthe lunger 11, this action being occasioned by t e lever 45 striking thestop 46. The plungers 5 and 11 then retract and the core-rod 19 returnsto its normal retracted position, and during this retracted movement thestop tube 15 acts as an ejector for forcing the formed work piece a fromthe forming head 14 and down into a receiving receptacle, which may beplaced below the forming position.

I wish it understood that my invention is not limited to any specificconstruction, arrangement or form of the parts, as it is capable ofnumerous modifications and changes without departing from the spirit ofthe claims.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is,-

1. In a porcelain tube heading machine, a pair of coacting plungersmovable toward and away from article operating position and adapted tocooperate to offset a work piece end, one plunger being operable toadvance a work piece into operative relation partially within the otherplunger, and means for simultaneously imparting opposed reciprocatorymovements to the plungers.

2. In a machine of the class described, a pair of opposed reciprocallymovable plungersadapted to cotiperate to upset a tube end, one toreceive a tube, and means operable to impart simultaneous opposedreciprocatory movements to the plungers.

3. In a machine of the class described, a pair of opposed reciprocatoryplungers, one being hollow to receive a work piece advanced by the otherplunger and both cooperating when advanced to upset an end of a workpiece, and means for imparting opposed reciprocatory movements to thepluners.

g 4. In a machine of the class described, a pair of opposedreciprocatory plungers, one being hollow to receive a tube advanced byceive and hold a work piece, a second plunthe other and both cooperatingwhen advanced to upset a portion ofan inserted tube, stop means forpreventing endwise movement of a tube during the upsetting action,

a. core piece for movement into and out of 7 0 the tube, and means forimparting simultaneous reciprocatory Umovements to the plungersandmovement to the core pieces.

In a machine of the class described, a pair :of opposed reciprocatoryplungers, one I 7 5 having provisionfor carrying a work piece. from apoint of supply to operating position and-the other being adaptedtoreceive the work piece and to cooperate with the companion plunger toupset a head on the work piece, a core rod for entering a work piecewhen the plungers are advanced, and means for-imparting opposedreciprocatory movements to the plungers and advancing and retractingmovements to the core rod.

6. In a machineof the class described, pair; of opposed reciprocallymovable plungers, one adapted to advance a work piece fromreceivingposition into holding relation to the other plunger, the plungersoperating whenadvanced to form a head on a work piece, an adjustablestop means in coaction with an end of the work giece' during the headingoperation and inc ependent ofthe" plungers, and means for impartingopposed movements to the plungers.

7. In a machine of the class described, a placing plunger having a workcarrying finger adapted to receive a work piece at one position and tomove it to a different position, a second plunger for receiving a workpiece advanced by the first plunger and cooperating therewith to upset aportion of the work piece, means for imparting opposed reciprocatorymovements to the plunger and a core member carried by the second plungernormally in one positionthereto and automatically moved at, apredetermined point in a movement of the second plunger to advance thecore member a distance beyond the work upsetting end of the secondplunger.

8. In a machine of the class described, a reciprocally movable plungeradapted to reger movable toward and away from the work receiving end ofthe first plunger and adapted to coact therewith to head a work i piece,a work support yieldingly carried by the second plunger and projectingin advance thereof for carrying the work piece from one position anddelivering it to the first plunger when the second plunger is ,3 movedinward and then to yield and passfi under the first plunger, and meansfor im }1 parting respective reciprocatory movements to the plungers.

9. In a porcelain tube heading machine, a pair of plungers mounted foropposed reciprocatory movements and adapted to c0- operate to head awork piece, a core rod carried by one plunger for movements therewithand for movements relative thereto, means :tor 1mpart1ng opposedreclprocatory .movements to the plungers, and means operable when theplungers are practically at the limit of their inward strokes to movethe core rod to project its end from the Work coacting end of theplungers and into the plunger, and means automaticallyoperable toact onthe core-rod when the plungers are near coacting position to advance thecore rod beyond the carrying plunger intouthe adjacent end of theopposed plunger and to retract the core-rod within its plunger when theplungers have outward opposed movements. v a 11. In a machine of theclass described, a

pair of plungers mounted for opposed re clprocatory movements andoperable to act together on a tube toupset a portion thereof, and meansfor imparting positive reciprocatory movements to one plunger andyielding reciprocatorymovements to the other plunger,,the yieldingplungerhaving.

its movement stopped before the end of the driving stroke of the drivingmeans.

12. In a machine of the'class described,

magazine, a plunger reciprocally movable through said magazine tosuccessively ad:-

vance tubes therefrom to operating position, a second plungerreciprocally movable toward and away from the first plunger to cooperatetherewith when in operating'position to form a head on a tube,adjustable means for opposing the end thrust of the first plun ger on atube during the heading operation, core means movably carried by thesecond plunger and into the firstvplunger preparatory to the headingoperation, means for imparting opposed reciprocatory movements to theplunger, and means for advancing and retracting the core means relativetoits car rying plunger at predetermined points in the movement thereof.r

In testimony whereof. I have hereunto signed my name to thisspecification.

' 'THOMASVLW. BEATTY;

